Mollusks are a phylum of soft-bodied invertebrate animals. Many mollusks have a hard external shell, but others do not. There are over 50,000 different types of mollusks alive today. Some major classes of mollusks include the bivalves (like clams), cephalopods (like octopuses and squids), aplacophorans (worm-like mollusks), chitons, monoplacophorans, scaphopods (tusk shells), and gastropods (like snails and slugs).

BivalvesBivalves are soft-bodied animals that are protected by two hard shells, hinged together.

Blue Ring OctopusA small but very venomous octopus from warm reefs in Australia and nearby regions.

In addition to printing the animals, you can copy a printout (click here for instructions) and paste it into a painting program (like Paint) and color the animal there. (Thanks to Grace P. from Thorngrove School for this great idea.)